Its a C++ question.

a 1. [10 points] Write a function that finds the largest of three integers using pass-by-reference and return-by-reference. Your design can use the function we wrote to find the larger between two integers. Test your function in a program using the main function below. Name the program lab21. int main () { // Declaration and initialization of three integers int num1, num2 , num3; cout>num1>>num2>>num3; // Finding and printing the largest integers cout